<center>
	<h2>{{problem.title}}</h2><br>
	time:<b>{{problem.timelimit}}second</b> memory:<b>{{problem.memorylimit}}KB</b><br>
</center>
describe:<br>
{{problem.text}}
<br>
<br>
input:<br>
{{problem.indescribe}}<br><br>
output:<br>
{{problem.outdescribe}}<br><br>
samplein:<br>
{{problem.samplein}}<br><br>
sampleout:<br>
{{problem.sampleout}}<br><br>
hint:<br>
{{problem.hint}}<br><br>
source:<br>
{{problem.source}}<br><br>
